Thank you, but no macro exists. Also, first point is, you must download table for arcsinh curve's for affinity photo from link 1drv.ms/f/s!Ak5cGkni0fcghL49fMqaLf-rrPSIWA then manually create curve adjustment values for arcsinh 10,100... and magic happend after that :) Create Luminance, divide and multiply layers. You must play with curve adjustment values, levels and SCNR. Examples for Luminance and SCNR Green channel procedural texture is on the same link :)
@@Astro-Foto-Grafie Thank for your fast reply. I was able to proceed nearly all of your work. Only the luminance formula I have to look again. On the left there are some macros like luminance (3 steps), RGB channel extraction and the others. Thought these were macros. Never the less, thanks a lot.
I have build these two Layers Luminance div and Luminance mult. Then I make a Tonestretch via Arcsinh and drag this layer down to the Luminance mult the image become very greyish tint. Therefor I do a Tone adjustment and drag Blackpoint of R,G,B near the histogram. The image become darker. If I now drag this layer like in your video under (within) the Luminance mult Layer all the colors (saturation) are nearly gone, the image is quite grayish, nearly without color. What am I doing wrong? Could you help?
Could you tray manipulate levels, curves arscinh and all of the process exact on Luminance multiply layer. In video I mentioned 'slovak language', Affinity photo has some wired behavior with layers and histogram. I really don't know which build it was. But few monts ago Affinity this issue 'bug' removed. I didn't mention in video, this post processing technique is for narrowband astro images not for galaxies. Also, you can grab your workflow screen to video and share it to me, and I try to resolve your issue :)
